ed2e9aafde33e6f85c93908b78ba8a794ec52cde0b1caf15795bc6c4113ca292

General

Target

22f8a550d0a4c3d1bd13878152c0c070.exe
Size

40KB
MD5

22f8a550d0a4c3d1bd13878152c0c070
SHA1

952cd2133d429e9775fd023ed311da7812ef954a
SHA256

ed2e9aafde33e6f85c93908b78ba8a794ec52cde0b1caf15795bc6c4113ca292
SHA512

43e102adfe297924dc9f6a65adeca87616a0774da099552c8d40e6d9c67f794c5c7cecee2e3f62b77d0c6357ec3bd8cca75a18422d1fb19273079c5289e558b8
SSDEEP

768:xOSR67hDeOkjbMNwqajt1oumXPHrDWGle/oJfNnD2D6zq+sMhftP:FR61en3MNwqajroBDWGlBfNiD6z5FhZ

Score

10^/10

evasion trojan upx

Malware Config

Signatures

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msnrav.exe

Windows security bypass 2 TTPs 5 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	msnrav.exe

Deletes itself 1 IoCs

pid	Process
3068	msnrav.exe

Executes dropped EXE 1 IoCs

pid	Process
3068	msnrav.exe

UPX packed file 10 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/1984-5-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/3068-4-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/files/0x000c000000012242-3.dat	upx
behavioral1/memory/3068-8-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/3068-9-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/3068-10-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/3068-19-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/3068-20-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral1/memory/3068-22-0x0000000000400000-0x0000000000475000-memory.dmp	upx

Windows security modification 2 TTPs 5 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msnrav.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	msnrav.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	msnrav.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\3FO27ZEK.txt	msnrav.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\3FO27ZEK.txt	msnrav.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\msnrav.exe	22f8a550d0a4c3d1bd13878152c0c070.exe
File opened for modification	C:\Windows\system\msnrav.exe	22f8a550d0a4c3d1bd13878152c0c070.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C06C6DDA-D6F6-4186-8BE0-FDFC0D0D0DBF}	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-17-12-70-63-9c	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	msnrav.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	msnrav.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	msnrav.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C06C6DDA-D6F6-4186-8BE0-FDFC0D0D0DBF}\WpadDecisionReason = "1"	msnrav.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C06C6DDA-D6F6-4186-8BE0-FDFC0D0D0DBF}\WpadNetworkName = "Network 3"	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	msnrav.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C06C6DDA-D6F6-4186-8BE0-FDFC0D0D0DBF}\22-17-12-70-63-9c	msnrav.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C06C6DDA-D6F6-4186-8BE0-FDFC0D0D0DBF}\WpadDecisionTime = 006ca3efec3cda01	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C06C6DDA-D6F6-4186-8BE0-FDFC0D0D0DBF}\WpadDecision = "0"	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-17-12-70-63-9c\WpadDecisionReason = "1"	msnrav.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-17-12-70-63-9c\WpadDecisionTime = 006ca3efec3cda01	msnrav.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-17-12-70-63-9c\WpadDecision = "0"	msnrav.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msnrav.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	msnrav.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f005d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	msnrav.exe

C:\Windows\system\msnrav.exe
"C:\Windows\system\msnrav.exe"
1⤵
- Modifies security service
- Windows security bypass
- Deletes itself
- Executes dropped EXE
- Windows security modification
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3068

C:\Users\Admin\AppData\Local\Temp\22f8a550d0a4c3d1bd13878152c0c070.exe
"C:\Users\Admin\AppData\Local\Temp\22f8a550d0a4c3d1bd13878152c0c070.exe"
1⤵
- Drops file in Windows directory
PID:1984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\system\msnrav.exe

Filesize
40KB

MD5
22f8a550d0a4c3d1bd13878152c0c070

SHA1
952cd2133d429e9775fd023ed311da7812ef954a

SHA256
ed2e9aafde33e6f85c93908b78ba8a794ec52cde0b1caf15795bc6c4113ca292

SHA512
43e102adfe297924dc9f6a65adeca87616a0774da099552c8d40e6d9c67f794c5c7cecee2e3f62b77d0c6357ec3bd8cca75a18422d1fb19273079c5289e558b8

Download Submit
memory/1984-5-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/1984-0-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-12-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-15-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-9-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-10-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-11-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-4-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-14-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-8-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-16-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-17-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-18-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-19-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-20-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-21-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download
memory/3068-22-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads